α ε
σ
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Trang 12@U! - ! 4 7 ! % , / , 0 ( ! & )
σ σ
2
σ σ σ
Trang 418 - 4" PJ " ( 8.P J "(
Trang 42'(
Trang 434
8(
Trang 77!+
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Trang 92=µ
Trang 103=σ
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